Samsung Galaxy S5 G900FD DUOS 4G LTE 16GB Unlocked GSM Dual-SIM Quad-Core Smartphone - Retail Packaging - Black 2G: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, 3G: HSDPA 850 / 900 / 1900 / 2100, 4G: LTE 800 / 850 / 900 / 1800 / 1900 / 2100 / 2600 5.1" Super AMOLED Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Android v4.4.2 (KitKat), Quad-Core 2.5 GHz Krait 400 Processor, Chipset: Qualcomm MSM8974AC Snapdragon 81, Adreno 330 Graphics 16 Megapixel Camera (5312 x 2988 pixels) w/ Phase detection w/ Autofocus, LED flash + Front-Facing 2 Megapixel Camera dual video call Internal Memory: 16GB storage, 2GB RAM + micro SD Slot Expandable up to 128GB Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.